The correct answer is: A. Elephant
Sambhavanatha Tirthankar was the first Tirthankar of the present Avasarpini age. He was born in a royal family in the city of Ayodhya. He renounced his kingdom and became a monk in order to seek enlightenment. He attained enlightenment under a banyan tree and preached for 30 years. He attained nirvana at the age of 72.
The symbol of Sambhavanatha Tirthankar is an elephant. The elephant is a symbol of strength, wisdom, and compassion. It is also a symbol of the path to enlightenment. The elephant is often depicted with a lotus flower in its trunk, which represents the goal of enlightenment.
The other options are incorrect because they are not the symbols of Sambhavanatha Tirthankar. The cow is a symbol of Ahimsa, or non-violence. The horse is a symbol of speed and power. The tortoise is a symbol of patience and perseverance.